作者: Robert Hutchins , W. Hudson Welch , Michael R. Feldman
DOI:
关键词: Computer science 、 Lens (optics) 、 Free form 、 Holography 、 Optics 、 Surface (mathematics)
摘要: A diffusing function and a lens are provided on single surface which is formed from computer generated hologram including free form regions (56) having phase shift the being shifted within by relative to outside zero (52) PI (50) transposed in regions.